Where are we all headed? How can we believe evolution is moving in a positive direction? Life hasn't been so reassuring in recent times.

What can we learn from the past? What has evolution taught us that we can understand and trust? Traditional evolution scientists believe our civilization developed by chance as did our bodies and minds and they don't believe in consciousness.

What do we need to know to look ahead optimistically? Listen to this interview with Steve McIntosh, the author of "Evolution's Purpose" and hear how it is all unfolding.